Description Usage Arguments Value Note References
slenderness ratio is an important index of stability of trees and branches
1 |
x |
the data frame holding the measures needed to perform the computation |
diameter |
The name of the data frame column holding diameter of the branch |
length |
The name of the data frame column holding length of the branch |
tilt |
The name of the data frame column holding tilt of the branch |
slenderness ratio
The coefficient takes into account branch angle: SL_c=\frac{L}{D} \cdot (1 + cos α), where α is the branch angle (0 degrees = horizontal, 90 degrees vertical), L is branch length in m, D is branch diameter in cm Vertical branches have SL = SL_c
Mattheck, C. and Breloer, H. The Body Language of Trees: A Handbook for Failure Analysis (Research for Amenity Trees) 1995, HMSO (London)
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